drivers/media/pci/saa7164/saa7164.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  *  Driver for the NXP SAA7164 PCIe bridge
   4  *
   5  *  Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
   6  */
   7
   8 /*
   9         Driver architecture
  10         *******************
  11
  12         saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
  13                 |       : Standard Linux driver framework for creating
  14                 |       : exposing and managing interfaces to the rest
  15                 |       : of the kernel or userland. Also uses _fw.c to load
  16                 |       : firmware direct into the PCIe bus, bypassing layers.
  17                 V
  18         saa7164_api..() : Translate kernel specific functions/features
  19                 |       : into command buffers.
  20                 V
  21         saa7164_cmd..() : Manages the flow of command packets on/off,
  22                 |       : the bus. Deal with bus errors, timeouts etc.
  23                 V
  24         saa7164_bus..() : Manage a read/write memory ring buffer in the
  25                 |       : PCIe Address space.
  26                 |
  27                 |               saa7164_fw...() : Load any frimware
  28                 |                       |       : direct into the device
  29                 V                       V
  30         <- ----------------- PCIe address space -------------------- ->
  31 */
  32
  33 #include <linux/pci.h>
  34 #include <linux/i2c.h>
  35 #include <linux/kdev_t.h>
  36 #include <linux/mutex.h>
  37 #include <linux/crc32.h>
  38 #include <linux/kthread.h>
  39 #include <linux/freezer.h>
  40
  41 #include <media/tuner.h>
  42 #include <media/tveeprom.h>
  43 #include <media/dvb_demux.h>
  44 #include <media/dvb_frontend.h>
  45 #include <media/dvb_net.h>
  46 #include <media/dvbdev.h>
  47 #include <media/dmxdev.h>
  48 #include <media/v4l2-common.h>
  49 #include <media/v4l2-ioctl.h>
  50 #include <media/v4l2-device.h>
  51 #include <media/v4l2-ctrls.h>
  52 #include <media/v4l2-event.h>
  53
  54 #include "saa7164-reg.h"
  55 #include "saa7164-types.h"
  56
  57 #define SAA7164_MAXBOARDS 8
  58
  59 #define UNSET (-1U)
  60 #define SAA7164_BOARD_NOAUTO                    UNSET
  61 #define SAA7164_BOARD_UNKNOWN                   0
  62 #define SAA7164_BOARD_UNKNOWN_REV2              1
  63 #define SAA7164_BOARD_UNKNOWN_REV3              2
  64 #define SAA7164_BOARD_HAUPPAUGE_HVR2250         3
  65 #define SAA7164_BOARD_HAUPPAUGE_HVR2200         4
  66 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_2       5
  67 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_3       6
  68 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_2       7
  69 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_3       8
  70 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_4       9
  71 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_5       10
  72 #define SAA7164_BOARD_HAUPPAUGE_HVR2255proto    11
  73 #define SAA7164_BOARD_HAUPPAUGE_HVR2255         12
  74 #define SAA7164_BOARD_HAUPPAUGE_HVR2205         13
  75
  76 #define SAA7164_MAX_UNITS               8
  77 #define SAA7164_TS_NUMBER_OF_LINES      312
  78 #define SAA7164_PS_NUMBER_OF_LINES      256
  79 #define SAA7164_PT_ENTRIES              16 /* (312 * 188) / 4096 */
  80 #define SAA7164_MAX_ENCODER_BUFFERS     64 /* max 5secs of latency at 6Mbps */
  81 #define SAA7164_MAX_VBI_BUFFERS         64
  82
  83 /* Port related defines */
  84 #define SAA7164_PORT_TS1        (0)
  85 #define SAA7164_PORT_TS2        (SAA7164_PORT_TS1 + 1)
  86 #define SAA7164_PORT_ENC1       (SAA7164_PORT_TS2 + 1)
  87 #define SAA7164_PORT_ENC2       (SAA7164_PORT_ENC1 + 1)
  88 #define SAA7164_PORT_VBI1       (SAA7164_PORT_ENC2 + 1)
  89 #define SAA7164_PORT_VBI2       (SAA7164_PORT_VBI1 + 1)
  90 #define SAA7164_MAX_PORTS       (SAA7164_PORT_VBI2 + 1)
  91
  92 #define DBGLVL_FW    4
  93 #define DBGLVL_DVB   8
  94 #define DBGLVL_I2C  16
  95 #define DBGLVL_API  32
  96 #define DBGLVL_CMD  64
  97 #define DBGLVL_BUS 128
  98 #define DBGLVL_IRQ 256
  99 #define DBGLVL_BUF 512
 100 #define DBGLVL_ENC 1024
 101 #define DBGLVL_VBI 2048
 102 #define DBGLVL_THR 4096
 103 #define DBGLVL_CPU 8192
 104
 105 #define SAA7164_NORMS \
 106         (V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP)
 107
 108 /* TV frequency range copied from tuner-core.c */
 109 #define SAA7164_TV_MIN_FREQ (44U * 16U)
 110 #define SAA7164_TV_MAX_FREQ (958U * 16U)
 111
 112 enum port_t {
 113         SAA7164_MPEG_UNDEFINED = 0,
 114         SAA7164_MPEG_DVB,
 115         SAA7164_MPEG_ENCODER,
 116         SAA7164_MPEG_VBI,
 117 };
 118
 119 enum saa7164_i2c_bus_nr {
 120         SAA7164_I2C_BUS_0 = 0,
 121         SAA7164_I2C_BUS_1,
 122         SAA7164_I2C_BUS_2,
 123 };
 124
 125 enum saa7164_buffer_flags {
 126         SAA7164_BUFFER_UNDEFINED = 0,
 127         SAA7164_BUFFER_FREE,
 128         SAA7164_BUFFER_BUSY,
 129         SAA7164_BUFFER_FULL
 130 };
 131
 132 enum saa7164_unit_type {
 133         SAA7164_UNIT_UNDEFINED = 0,
 134         SAA7164_UNIT_DIGITAL_DEMODULATOR,
 135         SAA7164_UNIT_ANALOG_DEMODULATOR,
 136         SAA7164_UNIT_TUNER,
 137         SAA7164_UNIT_EEPROM,
 138         SAA7164_UNIT_ZILOG_IRBLASTER,
 139         SAA7164_UNIT_ENCODER,
 140 };
 141
 142 /* The PCIe bridge doesn't grant direct access to i2c.
 143  * Instead, you address i2c devices using a uniqely
 144  * allocated 'unitid' value via a messaging API. This
 145  * is a problem. The kernel and existing demod/tuner
 146  * drivers expect to talk 'i2c', so we have to maintain
 147  * a translation layer, and a series of functions to
 148  * convert i2c bus + device address into a unit id.
 149  */
 150 struct saa7164_unit {
 151         enum saa7164_unit_type type;
 152         u8      id;
 153         char    *name;
 154         enum saa7164_i2c_bus_nr i2c_bus_nr;
 155         u8      i2c_bus_addr;
 156         u8      i2c_reg_len;
 157 };
 158
 159 struct saa7164_board {
 160         char    *name;
 161         enum port_t porta, portb, portc,
 162                 portd, porte, portf;
 163         enum {
 164                 SAA7164_CHIP_UNDEFINED = 0,
 165                 SAA7164_CHIP_REV2,
 166                 SAA7164_CHIP_REV3,
 167         } chiprev;
 168         struct  saa7164_unit unit[SAA7164_MAX_UNITS];
 169 };
 170
 171 struct saa7164_subid {
 172         u16     subvendor;
 173         u16     subdevice;
 174         u32     card;
 175 };
 176
 177 struct saa7164_encoder_fh {
 178         struct v4l2_fh fh;
 179         struct saa7164_port *port;
 180         atomic_t v4l_reading;
 181 };
 182
 183 struct saa7164_vbi_fh {
 184         struct v4l2_fh fh;
 185         struct saa7164_port *port;
 186         atomic_t v4l_reading;
 187 };
 188
 189 struct saa7164_histogram_bucket {
 190         u32 val;
 191         u32 count;
 192         u64 update_time;
 193 };
 194
 195 struct saa7164_histogram {
 196         char name[32];
 197         struct saa7164_histogram_bucket counter1[64];
 198 };
 199
 200 struct saa7164_user_buffer {
 201         struct list_head list;
 202
 203         /* Attributes */
 204         u8  *data;
 205         u32 pos;
 206         u32 actual_size;
 207
 208         u32 crc;
 209 };
 210
 211 struct saa7164_fw_status {
 212
 213         /* RISC Core details */
 214         u32     status;
 215         u32     mode;
 216         u32     spec;
 217         u32     inst;
 218         u32     cpuload;
 219         u32     remainheap;
 220
 221         /* Firmware version */
 222         u32     version;
 223         u32     major;
 224         u32     sub;
 225         u32     rel;
 226         u32     buildnr;
 227 };
 228
 229 struct saa7164_dvb {
 230         struct mutex lock;
 231         struct dvb_adapter adapter;
 232         struct dvb_frontend *frontend;
 233         struct dvb_demux demux;
 234         struct dmxdev dmxdev;
 235         struct dmx_frontend fe_hw;
 236         struct dmx_frontend fe_mem;
 237         struct dvb_net net;
 238         int feeding;
 239 };
 240
 241 struct saa7164_i2c {
 242         struct saa7164_dev              *dev;
 243
 244         enum saa7164_i2c_bus_nr         nr;
 245
 246         /* I2C I/O */
 247         struct i2c_adapter              i2c_adap;
 248         struct i2c_client               i2c_client;
 249         u32                             i2c_rc;
 250 };
 251
 252 struct saa7164_tvnorm {
 253         char            *name;
 254         v4l2_std_id     id;
 255 };
 256
 257 struct saa7164_encoder_params {
 258         struct saa7164_tvnorm encodernorm;
 259         u32 height;
 260         u32 width;
 261         u32 is_50hz;
 262         u32 bitrate; /* bps */
 263         u32 bitrate_peak; /* bps */
 264         u32 bitrate_mode;
 265         u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 266
 267         u32 audio_sampling_freq;
 268         u32 ctl_mute;
 269         u32 ctl_aspect;
 270         u32 refdist;
 271         u32 gop_size;
 272 };
 273
 274 struct saa7164_vbi_params {
 275         struct saa7164_tvnorm encodernorm;
 276         u32 height;
 277         u32 width;
 278         u32 is_50hz;
 279         u32 bitrate; /* bps */
 280         u32 bitrate_peak; /* bps */
 281         u32 bitrate_mode;
 282         u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 283
 284         u32 audio_sampling_freq;
 285         u32 ctl_mute;
 286         u32 ctl_aspect;
 287         u32 refdist;
 288         u32 gop_size;
 289 };
 290
 291 struct saa7164_port;
 292
 293 struct saa7164_buffer {
 294         struct list_head list;
 295
 296         /* Note of which h/w buffer list index position we occupy */
 297         int idx;
 298
 299         struct saa7164_port *port;
 300
 301         /* Hardware Specific */
 302         /* PCI Memory allocations */
 303         enum saa7164_buffer_flags flags; /* Free, Busy, Full */
 304
 305         /* A block of page align PCI memory */
 306         u32 pci_size;   /* PCI allocation size in bytes */
 307         u64 *cpu;       /* Virtual address */
 308         dma_addr_t dma; /* Physical address */
 309         u32 crc;        /* Checksum for the entire buffer data */
 310
 311         /* A page table that splits the block into a number of entries */
 312         u32 pt_size;            /* PCI allocation size in bytes */
 313         u64 *pt_cpu;            /* Virtual address */
 314         dma_addr_t pt_dma;      /* Physical address */
 315
 316         /* Encoder fops */
 317         u32 pos;
 318         u32 actual_size;
 319 };
 320
 321 struct saa7164_port {
 322
 323         struct saa7164_dev *dev;
 324         enum port_t type;
 325         int nr;
 326
 327         /* --- Generic port attributes --- */
 328
 329         /* HW stream parameters */
 330         struct tmHWStreamParameters hw_streamingparams;
 331
 332         /* DMA configuration values, is seeded during initialization */
 333         struct tmComResDMATermDescrHeader hwcfg;
 334
 335         /* hardware specific registers */
 336         u32 bufcounter;
 337         u32 pitch;
 338         u32 bufsize;
 339         u32 bufoffset;
 340         u32 bufptr32l;
 341         u32 bufptr32h;
 342         u64 bufptr64;
 343
 344         u32 numpte;     /* Number of entries in array, only valid in head */
 345
 346         struct mutex dmaqueue_lock;
 347         struct saa7164_buffer dmaqueue;
 348
 349         u64 last_irq_msecs, last_svc_msecs;
 350         u64 last_irq_msecs_diff, last_svc_msecs_diff;
 351         u32 last_svc_wp;
 352         u32 last_svc_rp;
 353         u64 last_irq_svc_msecs_diff;
 354         u64 last_read_msecs, last_read_msecs_diff;
 355         u64 last_poll_msecs, last_poll_msecs_diff;
 356
 357         struct saa7164_histogram irq_interval;
 358         struct saa7164_histogram svc_interval;
 359         struct saa7164_histogram irq_svc_interval;
 360         struct saa7164_histogram read_interval;
 361         struct saa7164_histogram poll_interval;
 362
 363         /* --- DVB Transport Specific --- */
 364         struct saa7164_dvb dvb;
 365         struct i2c_client *i2c_client_demod;
 366         struct i2c_client *i2c_client_tuner;
 367
 368         /* --- Encoder/V4L related attributes --- */
 369         /* Encoder */
 370         /* Defaults established in saa7164-encoder.c */
 371         struct saa7164_tvnorm encodernorm;
 372         struct v4l2_ctrl_handler ctrl_handler;
 373         v4l2_std_id std;
 374         u32 height;
 375         u32 width;
 376         u32 freq;
 377         u8 mux_input;
 378         u8 encoder_profile;
 379         u8 video_format;
 380         u8 audio_format;
 381         u8 video_resolution;
 382         u16 ctl_brightness;
 383         u16 ctl_contrast;
 384         u16 ctl_hue;
 385         u16 ctl_saturation;
 386         u16 ctl_sharpness;
 387         s8 ctl_volume;
 388
 389         struct tmComResAFeatureDescrHeader audfeat;
 390         struct tmComResEncoderDescrHeader encunit;
 391         struct tmComResProcDescrHeader vidproc;
 392         struct tmComResExtDevDescrHeader ifunit;
 393         struct tmComResTunerDescrHeader tunerunit;
 394
 395         struct work_struct workenc;
 396
 397         /* V4L Encoder Video */
 398         struct saa7164_encoder_params encoder_params;
 399         struct video_device *v4l_device;
 400         atomic_t v4l_reader_count;
 401
 402         struct saa7164_buffer list_buf_used;
 403         struct saa7164_buffer list_buf_free;
 404         wait_queue_head_t wait_read;
 405
 406         /* V4L VBI */
 407         struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc;
 408         struct saa7164_vbi_params vbi_params;
 409         struct saa7164_port *enc_port;
 410
 411         /* Debug */
 412         u32 sync_errors;
 413         u32 v_cc_errors;
 414         u32 a_cc_errors;
 415         u8 last_v_cc;
 416         u8 last_a_cc;
 417         u32 done_first_interrupt;
 418 };
 419
 420 struct saa7164_dev {
 421         struct list_head        devlist;
 422         atomic_t                refcount;
 423
 424         struct v4l2_device v4l2_dev;
 425
 426         /* pci stuff */
 427         struct pci_dev  *pci;
 428         unsigned char   pci_rev, pci_lat;
 429         int             pci_bus, pci_slot;
 430         u32             __iomem *lmmio;
 431         u8              __iomem *bmmio;
 432         u32             __iomem *lmmio2;
 433         u8              __iomem *bmmio2;
 434         int             pci_irqmask;
 435
 436         /* board details */
 437         int     nr;
 438         int     hwrevision;
 439         u32     board;
 440         char    name[16];
 441
 442         /* firmware status */
 443         struct saa7164_fw_status        fw_status;
 444         u32                             firmwareloaded;
 445
 446         struct tmComResHWDescr          hwdesc;
 447         struct tmComResInterfaceDescr   intfdesc;
 448         struct tmComResBusDescr         busdesc;
 449
 450         struct tmComResBusInfo          bus;
 451
 452         /* Interrupt status and ack registers */
 453         u32 int_status;
 454         u32 int_ack;
 455         bool msi;
 456
 457         struct cmd                      cmds[SAA_CMD_MAX_MSG_UNITS];
 458         struct mutex                    lock;
 459
 460         /* I2c related */
 461         struct saa7164_i2c i2c_bus[3];
 462
 463         /* Transport related */
 464         struct saa7164_port ports[SAA7164_MAX_PORTS];
 465
 466         /* Deferred command/api interrupts handling */
 467         struct work_struct workcmd;
 468
 469         /* A kernel thread to monitor the firmware log, used
 470          * only in debug mode.
 471          */
 472         struct task_struct *kthread;
 473
 474 };
 475
 476 extern struct list_head saa7164_devlist;
 477 extern unsigned int waitsecs;
 478 extern unsigned int encoder_buffers;
 479 extern unsigned int vbi_buffers;
 480
 481 /* ----------------------------------------------------------- */
 482 /* saa7164-core.c                                              */
 483 void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
 484 void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
 485 u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
 486 void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
 487
 488 /* ----------------------------------------------------------- */
 489 /* saa7164-fw.c                                                */
 490 int saa7164_downloadfirmware(struct saa7164_dev *dev);
 491
 492 /* ----------------------------------------------------------- */
 493 /* saa7164-i2c.c                                               */
 494 extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 495 extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 496 extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 497         unsigned int cmd, void *arg);
 498
 499 /* ----------------------------------------------------------- */
 500 /* saa7164-bus.c                                               */
 501 int saa7164_bus_setup(struct saa7164_dev *dev);
 502 void saa7164_bus_dump(struct saa7164_dev *dev);
 503 int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg,
 504         void *buf);
 505 int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg,
 506         void *buf, int peekonly);
 507
 508 /* ----------------------------------------------------------- */
 509 /* saa7164-cmd.c                                               */
 510 int saa7164_cmd_send(struct saa7164_dev *dev,
 511         u8 id, enum tmComResCmd command, u16 controlselector,
 512         u16 size, void *buf);
 513 void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
 514 int saa7164_irq_dequeue(struct saa7164_dev *dev);
 515
 516 /* ----------------------------------------------------------- */
 517 /* saa7164-api.c                                               */
 518 int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
 519 int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
 520 int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
 521         u32 datalen, u8 *data);
 522 int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
 523         u32 datalen, u8 *data);
 524 int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
 525         u32 datalen, u8 *data);
 526 int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
 527 int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 528 int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 529 int saa7164_api_transition_port(struct saa7164_port *port, u8 mode);
 530 int saa7164_api_initialize_dif(struct saa7164_port *port);
 531 int saa7164_api_configure_dif(struct saa7164_port *port, u32 std);
 532 int saa7164_api_set_encoder(struct saa7164_port *port);
 533 int saa7164_api_get_encoder(struct saa7164_port *port);
 534 int saa7164_api_set_aspect_ratio(struct saa7164_port *port);
 535 int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl);
 536 int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl);
 537 int saa7164_api_set_videomux(struct saa7164_port *port);
 538 int saa7164_api_audio_mute(struct saa7164_port *port, int mute);
 539 int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level);
 540 int saa7164_api_set_audio_std(struct saa7164_port *port);
 541 int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect);
 542 int saa7164_api_get_videomux(struct saa7164_port *port);
 543 int saa7164_api_set_vbi_format(struct saa7164_port *port);
 544 int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level);
 545 int saa7164_api_collect_debug(struct saa7164_dev *dev);
 546 int saa7164_api_get_load_info(struct saa7164_dev *dev,
 547         struct tmFwInfoStruct *i);
 548
 549 /* ----------------------------------------------------------- */
 550 /* saa7164-cards.c                                             */
 551 extern struct saa7164_board saa7164_boards[];
 552 extern const unsigned int saa7164_bcount;
 553
 554 extern struct saa7164_subid saa7164_subids[];
 555 extern const unsigned int saa7164_idcount;
 556
 557 extern void saa7164_card_list(struct saa7164_dev *dev);
 558 extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 559 extern void saa7164_card_setup(struct saa7164_dev *dev);
 560
 561 extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 562 extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 563 extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
 564
 565 /* ----------------------------------------------------------- */
 566 /* saa7164-dvb.c                                               */
 567 extern int saa7164_dvb_register(struct saa7164_port *port);
 568 extern int saa7164_dvb_unregister(struct saa7164_port *port);
 569
 570 /* ----------------------------------------------------------- */
 571 /* saa7164-buffer.c                                            */
 572 extern struct saa7164_buffer *saa7164_buffer_alloc(
 573         struct saa7164_port *port, u32 len);
 574 extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
 575 extern void saa7164_buffer_display(struct saa7164_buffer *buf);
 576 extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
 577 extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
 578 extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
 579         struct saa7164_dev *dev, u32 len);
 580 extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
 581 extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
 582
 583 /* ----------------------------------------------------------- */
 584 /* saa7164-encoder.c                                            */
 585 int saa7164_s_std(struct saa7164_port *port, v4l2_std_id id);
 586 int saa7164_g_std(struct saa7164_port *port, v4l2_std_id *id);
 587 int saa7164_enum_input(struct file *file, void *priv, struct v4l2_input *i);
 588 int saa7164_g_input(struct saa7164_port *port, unsigned int *i);
 589 int saa7164_s_input(struct saa7164_port *port, unsigned int i);
 590 int saa7164_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
 591 int saa7164_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t);
 592 int saa7164_g_frequency(struct saa7164_port *port, struct v4l2_frequency *f);
 593 int saa7164_s_frequency(struct saa7164_port *port,
 594                         const struct v4l2_frequency *f);
 595 int saa7164_encoder_register(struct saa7164_port *port);
 596 void saa7164_encoder_unregister(struct saa7164_port *port);
 597
 598 /* ----------------------------------------------------------- */
 599 /* saa7164-vbi.c                                            */
 600 int saa7164_vbi_register(struct saa7164_port *port);
 601 void saa7164_vbi_unregister(struct saa7164_port *port);
 602
 603 /* ----------------------------------------------------------- */
 604
 605 extern unsigned int crc_checking;
 606
 607 extern unsigned int saa_debug;
 608 #define dprintk(level, fmt, arg...)\
 609         do { if (saa_debug & level)\
 610                 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
 611         } while (0)
 612
 613 #define log_warn(fmt, arg...)\
 614         do { \
 615                 printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
 616         } while (0)
 617
 618 #define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
 619 #define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
 620
 621 #define saa7164_readb(reg)             readl(dev->bmmio + (reg))
 622 #define saa7164_writeb(reg, value)     writel((value), dev->bmmio + (reg))
 623